package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 统计报表
 */
@RestController
@RequestMapping("/report")
public class ReportController {
	@Reference
	private ReportService reportService;
	@Reference
	private SetmealService setmealService;
	@Reference
	private MemberService memberService;
	/**
	 * 会员数量统计
	 * @return
	 */
	@RequestMapping("/getMemberReport")
	public Result getMemberReport(){
		Calendar calendar = Calendar.getInstance();
		calendar.add(Calendar.MONTH,-12);//获得当前日期之前12个月的日期
		List<String> list = new ArrayList<>();
		for(int i=0;i<12;i++){
			calendar.add(Calendar.MONTH,1);
			list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
		}
		Map<String,Object> map = new HashMap<>();
		map.put("months",list);
		List<Integer> memberCount = memberService.findMemberCountByMonth(list);
		map.put("memberCount",memberCount);
		return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
	}
	//套餐占比统计
	@RequestMapping("/getSetmealReport")
	public Result getSetmealReport(){
		List<Map<String,Object>> list = setmealService.findSetmealCount();
		Map<String,Object> map = new HashMap<>();
		map.put("setmealCount",list);
		List<String> setmealNames = new ArrayList<>();
		for (Map<String, Object> m : list) {
			String name = (String) m.get("name");
			setmealNames.add(name);
		}
		map.put("setmealNames",setmealNames);
		return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
	}
	@RequestMapping("/getSetmealReportTwo")
	public Result getSetmealReportTwo(){
		List<Map<String,Object>> list = setmealService.findSetmealCountTwo();
		Map<String,Object> map = new HashMap<>();
		map.put("setmealCount",list);
		List<String> setmealNames = new ArrayList<>();
		for (Map<String, Object> m : list) {
			String name = (String) m.get("name");
			setmealNames.add(name);
		}
		map.put("setmealNames",setmealNames);
		return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
	}
	//获取运营统计数据
	@RequestMapping("/getBusinessReportData")
	public Result getBusinessReportData(){
		try {
			Map<String, Object> result = reportService.getBusinessReport();
			return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,result);
		} catch (Exception e) {
			e.printStackTrace();
			return new Result(true,MessageConstant.GET_BUSINESS_REPORT_FAIL);
		}
	}
	//导出数据
	@RequestMapping("/exportBusinessReport")
	public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
		try{
			//远程调用报表服务获取报表数据
			Map<String, Object> result = reportService.getBusinessReport();
			//取出返回结果数据，准备将报表数据写入到Excel文件中
			String reportDate = (String) result.get("reportDate");
			Integer todayNewMember = (Integer) result.get("todayNewMember");
			Integer totalMember = (Integer) result.get("totalMember");
			Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
			Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
			Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
			Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
			Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
			Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
			Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
			Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
			List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
			//获得Excel模板文件绝对路径
			String temlateRealPath = request.getSession().getServletContext().getRealPath("template") +
					File.separator + "report_template.xlsx";
			//读取模板文件创建Excel表格对象
			XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
			XSSFSheet sheet = workbook.getSheetAt(0);
			XSSFRow row = sheet.getRow(2);
			row.getCell(5).setCellValue(reportDate);//日期
			row = sheet.getRow(4);
			row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
			row.getCell(7).setCellValue(totalMember);//总会员数
			row = sheet.getRow(5);
			row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
			row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数
			row = sheet.getRow(7);
			row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
			row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数
			row = sheet.getRow(8);
			row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
			row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数
			row = sheet.getRow(9);
			row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
			row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数
			int rowNum = 12;
			for(Map map : hotSetmeal){//热门套餐
				String name = (String) map.get("name");
				Long setmeal_count = (Long) map.get("setmeal_count");
				BigDecimal proportion = (BigDecimal) map.get("proportion");
				row = sheet.getRow(rowNum ++);
				row.getCell(4).setCellValue(name);//套餐名称
				row.getCell(5).setCellValue(setmeal_count);//预约数量
				row.getCell(6).setCellValue(proportion.doubleValue());//占比
			}
			//通过输出流进行文件下载
			ServletOutputStream out = response.getOutputStream();
			response.setContentType("application/vnd.ms-excel");
			response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
			workbook.write(out);
			out.flush();
			out.close();
			workbook.close();
			return null;
		}catch (Exception e){
			return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
		}
	}
	//导出运营数据到pdf并提供客户端下载
	@RequestMapping("/exportBusinessReport4PDF")
	public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
		try {
			Map<String, Object> result = reportService.getBusinessReport();
			//取出返回结果数据，准备将报表数据写入到PDF文件中
			List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
			//动态获取模板文件绝对磁盘路径
			String jrxmlPath =
					request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
			String jasperPath =
					request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";
			//编译模板
			JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);
			//填充数据---使用JavaBean数据源方式填充
			JasperPrint jasperPrint =
					JasperFillManager.fillReport(jasperPath,result,
							new JRBeanCollectionDataSource(hotSetmeal));
			ServletOutputStream out = response.getOutputStream();
			response.setContentType("application/pdf");
			response.setHeader("content-Disposition", "attachment;filename=report.pdf");
			//输出文件
			JasperExportManager.exportReportToPdfStream(jasperPrint,out);
			return null;
		} catch (Exception e) {
			e.printStackTrace();
			return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
		}
	}
}